Archived threads in /sci/ - Science & Math - 366. page
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How long until we see a picture of Planet 9? How detailed a picture of this planet can Hubble take? If not a picture how much info can we gather from spectral data? what are the chances of ayys living there?
>>7843212
200au is pretty far. It's probably frozen as fuck so no ayyys
>>7843224
But I want to meet ayys now!
>>7843228
Check u're bunghole
Where is and what is at the center of the universe?
What is at the centre of Earth?
Answer: It is meaningless and of non-importance, who gives a fuck?
>>7842956
A particle that's not really there.
is the root of the big bang, like, still there emiting light and matter after all this time, like a reverse black whole?
what does /sci/ think of this?
http://www.sciencedaily.com/releases/2013/01/130104143516.htm
Old article, but it states that a laboratory has managed to create a gas with a temperature in "negative Kelvin".
This means below 0 Kelvin, which makes no sense to me because I thought temperature was measured according to particle movement and 0 Kelvin means no movement... the article doesn't do much justice in explaining the concept very well.
>>7842951
https://www.youtube.com/watch?v=yTeBUpR17Rw
>>7842951
Negative Absolute Temps aren't a new concept. They are actually hotter than positive temps. This might seem paradoxical, but it makes sense scientifically.
>>7843147
Seems intuitive. You go so far back that your end up in the front
Anons, I need advice. I am the 1% of women in my CS course and somehow I've ended up with this guy as my lab partner. My problem is that he's waay too ahead, not just me but he's on a scholarship and have a hell good amount of experience in the industry etc. What's worse is that I myself am basically the complete opposite - I'm grinding my ass off trying get above the curve (went to a girl's school, no computing courses offered before uni, had little preparation as i changed to CS from another course at the very last moment etc). Being with him...
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>>7842908
How about you start with "how can I help?"
At least you show up to lab. That alone makes you more helpful than 90% of the lab partners i've been stuck with in the past.
>>7842908
I would blog on /sci/ about it, making sure that they know I'm i grill btw xp
Ask him within the scope of your abilities, (explain) what you can do to lighten the burden of whatever projects you must complete. Also, everything is a paradigm into something else, from what is standard in the course of industry and work, to the fickle moments of individual imagination. Through a topological body, question yourself on how things are connected.
Honestly, I've got mixed feelings about them, I'm 1000 issues in and I'm still unsure if I've learned anything new about the post-grad life, it probably says something that I've yet to save any particular strips for future reference. Did /sci/ learn anything from them? At the very least, they're entertaining, but are they even accurate?
Also, does anyone have the second book? The author never put Mike's thesis defence online.
>>7842852
Mostly accurate except for the obvious exaggerations.
I tried to read all the comics in one sitting once. Failed. It gets really boring when he starts doing his trips talking to grad-students who dumbed down their research is a step up from pop-sci, but not as interesting as reading the front page of Nature.
I'd also like to see Mike's thesis defence, I'm considering just buying the book, but I'm kind of mad that the author took grad-school spots at top schools and a tenure track job...
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>>7842862
>t gets really boring when he starts doing his trips talking to grad-students who dumbed down their research
You mean the tales from the road thing? I'm planning to read all of them in one sitting, the text on them is too fucking small for me to bother to put in that much focus when I'm reading the other comics for procrastination purposes.
This one speaks to me.
Real of Fake?
> the only "evidence" is a shitty b&w photo
> no physical explaination
200% FAKE
>>7842854
http://www.keelynet.com/greb/greb.htm
here's an attempt of physical (not mathematical!) explaination
>>7842854
also this guy did some videos on it
https://www.youtube.com/user/911stuff/videos
I'm not implying im convinced tho, just baffled
Could you jump out of a helicopter last second before it crashes and be live?
No more live than if you stayed inside. Autorotation lets helicopters fall quite gracefully to the ground, provided the main rotor still rotates freely and there's an engine fault and not a "huge explosion to the rotor" fault.
They're death traps, but not for the reasons you think.
>>7842804
https://www.youtube.com/watch?v=4JqmoWAhv5g
looks like this.
>>7842804
I read this from the perspective of the lion
>being poached
>strangled by snek
>about to be hit by train
how did they calculate where a safe spot to detonate it would be? is it on of those things where you don't know how big it's going to be until it happens?
>>7842500
By using nuclear physics
>>7842500
they actually were worried that the nuclear reaction would chain with the hydrogen in the atmosphere and that they were going to catch the entire worlds air on fire and kill everyone.
and they still did it.
>>7842548
Things that aren't true: the post
I have a problem. I've been playing with ferrofluid, trying to make a display like pic related, but something weird happened. I filled a glass jar with 70% isopropyl alcohol (I read this would keep the ferrofluid from staining the glass), then added several drops of the ferrofluid. It worked perfectly at first, save for the isopropyl alcohol taking on a slight brown tinge. The ferrofluid behaved as you'd expect initially, but when I checked on the display a few weeks later, the ferrofluid had hardened into solid chunks of magnetite. The display was not in a magnetic...
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The carrier fluid is described as a "light hydrocarbon" in the MSDS, which most sources seem to interpret as mineral oil. The only list of light hydrocarbons I could find contained gases, so oil might be a good bet. I don't know what surfactant they used.
>>7842456
Carrier fluid is oleic acid, OP shoulda just used water
This is a guess ok so dont diss me for it.
You are, at a basic level making a battery by adding the alchohol. Thus there is anodic/cathodic reactions occuring even between minute particles. For me, that brown tinting is a classic sign of battery corrosion, its an indicator of same in electolyte. As I say, thats my SUGGESTION for it - i am no chemist. Dont shout at me !
Let's have a safe space free from autistic pure maths dickwavers and string theory memers. Actual solid real life applicable technology here.
Talk about your own projects or emerging technology such as fusion.
>>7842322
post qt twinks and ill consider sharing shit i worked on .
>>7842336
gay meme after 1 post
i hate this board
>>7842358
honestly though im an actual gay engineer im just memeing you for fun m8 dont take it too hard .
if you want to open a thread to discuss some general topic it is generally a good idea to start it with some question\idea .
>abstract algebra test tomorrow
>haven't studied at all and skipped half the classes
Should I just drop the class?
>>7842226
If you get a 'W', then it depends on how bad you think you'll do.
Why the fuck would you do that, go to class idiot
>know isomorphism theorems
are these fields separate from each other?
>calculus
>linear algebra
>differential equations
>analysis
meaning, do you not need one for the other? are they all independent pathways?
>>7842190
calculus and differential equations preceded analysis. Analysis is a more rigorous "version" of calculus and other theories(complex, functional anaylsis) and is consider more fundamental while calculus is more about application and function.
Linear Algebra is quite a different subject but has applications within differential equations
>>7842190
>>7842193
Oh, and you usually take calc first, then diffy Qs or linear algebra after your 2nd semester of calc. If you want to take a real analysis course you need an introduction to proofs. There is also sometimes a more advance differential equations course aimed for mathematicians instead of engineers/scientist witch requires knowledge of proofs and linear algebra as well
>>7842193
i was told that in order to study differential equations you needed to know functional analysis. is there any weight to this?
![first-6-astronauts1[1].jpg](https://i.imgur.com/WJ6hpvd.jpg "first-6-astronauts1[1].jpg")
How much more Delta-V does it cost to send a woman into space compared to a man, considering the weight of feminine hygiene products?
Balanced out because they're smaller. You fucking fag.
>>7842183
I actually imagine they'd temporarily shut down her reproductive system else she'd be hindered in training when she's having to experience cramps, illness etc every 12 months. There are drugs like that that can last 3 yrs at a time.
>>7842199
Meant to say 12 times a year, not 12 months
Hello /sci/ i have been just wondering about our life and what happens when we die.
of course the most basic answer is that we decompose and are lifeless shells.
but what becomes of the consciousness of an human being, does it disappear and turn into energy?
this puzzles me greatly and i think i cant find the answer to it even if i thought 1 thousand years.
>pic not related
>>7842103
>this puzzles me greatly and i think i cant find the answer to it even if i thought 1 thousand years.
>i think i cant find the answer to it even if i thought 1 thousand years.
>1 thousand years.
>this puzzles me greatly
>does it disappear and turn into energy?
>>7842106
that is just a weak answer
>>7842103
Consciousness is the result of brain activity. It goes when your brain goes.
I made a thread a while ago asking why if /sci/'s IQ is so high and you all attend top schools why has no-one here developed anything new and in addition to getting the usual "smart but lazy" bullshit but also many claimed that it's impossible for anyone without a PhD and huge research group to create anything new so why is it that many of the technological advancements of the 20th century were conceived of by amateurs? The airplane was invented by two bicycle mechanics, The stealth bomber was invented by the Horton brothers who were flying club members who never spent a day in university. The wankel engine, Felix Wankel never had a degree. Fast forward to the end of the 20th century the electronics age was virtually run by degree-less amateurs, Jobs and Gates etc. So why /sci/, why are untrained plebs pissing on all of your achievements? It is because you are not really smart, you're just good at passing exams.
>tech is too advanced nowadays
That's a "everything has already been invented" cop-out there is always new fields popping up. The 70s was pretty advanced what with trips to the Moon and fusion research going on yet Wozniak still managed to innovate. You can call yourself smart not when you have gotten into some college course or worse scored high in some online IQ test but when you have either published a research paper or hold a marketable patent.
>>7842100
Why haven't you?
>>7842100
All of the last 20th century innovators are computer people. That shit was new then. Now it's not.
>>7842113
There are new things going on now. Drones, cheap VR etc. Wasn't that Australian kid who was in the news recently for inventing a new more efficient ion rocket just an undergraduate?
